vcov.CountsEPPM {CountsEPPM} | R Documentation |
Variance/Covariance Matrix for Coefficients
Description
Variance/covariance matrix for coefficients of fitted model.
Usage
## S3 method for class 'CountsEPPM'
vcov(object, model = c("full", "mean", "scale.factor"), ...)
Arguments
object |
fitted model object of class "CountsEPPM" |
model |
character indicating variance/covariance matrix for all coefficients to be output: all coefficients ("full"), variance/covariance matrix for coefficients of probability of success ("mean"), variance/covariance matrix for coefficients of scale-factor ("scale.factor") |
... |
other parameters to be passed through to function |
Value
The variance/covariance matrix of the parameters of the fitted model object.
Author(s)
David M. Smith <dmccsmith@verizon.net>
References
Cribari-Neto F, Zeileis A. (2010). Beta Regression in R. Journal of Statistical Software, 34(2), 1-24. doi:10.18637/jss.v034.i02.
See Also
Examples
data("herons.group")
output.fn <- CountsEPPM(number.attempts ~ 0 + group,
herons.group, model.type = 'mean only', model.name = 'Poisson')
vcov(output.fn)
[Package CountsEPPM version 3.1 Index]